html {
  font-size: 62.5%;
  height: 100%;
}
body {
  height: 100%;
  min-height: 100%;
  background: #556c81 url(img/low_contrast_linen_@2X.png);
}
.loginBox {
  position: fixed;
  height: 360px;
  margin-top: -180px;
  width: 720px;
  margin-left: -360px;
  top: 50%;
  left: 50%;
  background: #eee;
  margin-top: -280px;
  background: -moz-linear-gradient(top, #ffffff, #efefef 8%);
  background: -webkit-gradient(linear, 0 0, 0 100%, from(#f6f6f6), to(#f4f4f4));
  border-radius: 8px;
  box-shadow: 0 0 15px #222;
  border: 1px solid #fff;
  color: #000;
  font: 11px/1.5em 'Microsoft YaHei';
}
